Prepare the asparagus by removing the tough ends or peeling up the stalks a couple of inches to remove the woody ends. You can cook them as spears or slice into smaller pieces.
Preheat oven to 400 degrees.
Put olive oil in the roasting pan and heat up in the oven.
Add the asparagus to the roasting pan and give them a toss. Add salt & pepper to taste.
Bake for 20 minutes or until the desired tenderness.
Top with a pat of butter and toss.
Serve immediately.
Notes
Nutritional information is an estimate. It will vary based the brands of ingredients used and on your cooking methods.